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Well, I got my first EVER impact wrench.
This one (IR W7150) is a 1/2inch drive and powered by a 20v battery. It boasts 1100 ft/lbs. of “nut busting torque” (whatever that is)… Otherwise 780 ft/lbs all day long.
I put a 21mm Kobalt Deep 6-point socket (1/2 drive) on it and went to town doing a tire rotation.
This thing zipped off all lug nuts like they weren’t even on there. I would just put completely on the nut then hit full trigger (full-power)… each time it literally took less than the blink of an eye for it to switch from impacting to spinning them off at full, open speed.
Honestly, I did several wheels one handed, using my right hand to run this thing and left hand to grab the nut.
Two things I particularly like:
1. It stops almost instantly with an automatic brake!
2. It has a variable speed trigger.When I put nuts on:
“I lightly run them forward at very low speed and listen for a light click (or two)” At low speed the hammering is weak, so it don’t over-torque fasteners.Then I pull out the torque wrench and can feel each lug nut actually move. Hence, no need for a torque stick if you use common sense.
Obviously, if you run full power forward and let it hammer away HARD, you are going to WAY over tighten things, warp rotors, etc.
Overall, I have nothing to compare it to (having never used an air impact), but supposedly this thing is on par with their top performing 1/2″ air impacts. Regardless, it seems extremely powerful.
I want to try it with a “bigger job” than lug nuts… because it doesn’t even put out any effort. It was so fast, the battery was still fully charged (4 lights) after doing a car.
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